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Title:
COUPLING METAL FITTING AND COUPLING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2022/075310
Kind Code:
A1
Abstract:
Provided is a coupling metal fitting including: a cylinder-shaped first body that has a first end section; a first coupling part having a plurality of first protrusions that are arranged around the first end section and on each of which a hook is formed; and a first sealing member that is provided on an outer circumferential surface of the first end section. A gap is formed between the outer circumferential surface and the plurality of first protrusions. When the coupling metal fitting is coupled with a target metal fitting, a portion of the target metal fitting is inserted into the gap, the hooks of the plurality of first protrusions are engaged with the target metal fitting, and the first sealing member is brought into contact with an inner circumferential surface of the target metal fitting.

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Inventors:
KAWASAKI TETSUHARU (JP)
TAMADA KAZUYUKI (JP)
Application Number:
PCT/JP2021/036790
Publication Date:
April 14, 2022
Filing Date:
October 05, 2021
Export Citation:
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Assignee:
SAKURA RUBBER (JP)
International Classes:
F16L37/244; F16J15/10
Domestic Patent References:
WO1999020928A11999-04-29
WO2003074922A12003-09-12
Foreign References:
JP2007333107A2007-12-27
JP2002039474A2002-02-06
JP2016031150A2016-03-07
JP2002039475A2002-02-06
JPH0914533A1997-01-17
JPS63106990U1988-07-11
JP2008151307A2008-07-03
CN207921559U2018-09-28
JP2016031150A2016-03-07
JP2007333107A2007-12-27
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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